Table 6 Comparison between unfiltered signals, moving average and proposed Kalman filtering
From: A model for inference of emotional state based on facial expressions
Emotion | Original | Moving average | Kalman | |||
|---|---|---|---|---|---|---|
\(\mu \) | \(\Sigma \) | \(\mu \) | \(\Sigma \) | \(\mu \) | \(\sigma \) | |
Happiness | 0.175 | 0.634 | 0.175 | 0.237 | 0.131 | 0.137 |
Sadness | 0.377 | 0.532 | 0.377 | 0.254 | 0.139 | 0.073 |
Fear | 0.211 | 0.544 | 0.211 | 0.206 | 0.219 | 0.187 |
Anger | 0.236 | 0.434 | 0.236 | 0.257 | 0.511 | 0.423 |